Oracle 8i query returning a negative age

From: <whyme_at_nowhere.com>
Date: Sat, 22 Jun 2002 19:15:51 GMT
Message-ID: <86j9hug68hf9iaretthmvckk9qak2aqjbq_at_4ax.com>

When I run this query in 8i, it is returning a negative age. Here is the table structure:

CREATE TABLE student
(student_id NUMBER(6),

student_last VARCHAR2(30),
student_first VARCHAR2(30),
student_mi CHAR(1),
student_add VARCHAR2(25),
student_city VARCHAR2(20),
student_state CHAR(2),
student_zip VARCHAR2(9),
student_phone VARCHAR2(10),
student_class CHAR(2),
student_dob DATE,
student_pin NUMBER(4),
faculty_id NUMBER(6),

CONSTRAINT student_student_id_pk PRIMARY KEY (student_id), CONSTRAINT student_faculty_id_fk FOREIGN KEY (faculty_id) REFERENCES faculty(faculty_id));

Here is one of the records that were inserted:

INSERT into STUDENT
VALUES
(100, 'Stalioraitis', 'Tamara', 'S', '144 Windridge Blvd.',
'Stillwater', 'NY', '12170', '5184371802', 'SR', TO_DATE('07/14/82', 'MM/DD/YY'), 8891, 1);

Finally, here is the query:

SELECT student_first, student_last, student_id, TRUNC((SYSDATE - student_dob)/365.25)
FROM student
WHERE student_class = 'SR';

When I run this query, it returns the infomation with a negative age:

STUDENT_FIRST                  STUDENT_LAST

STUDENT_ID

------------------------------ ------------------------------

---

TRUNC((SYSDATE-STUDENT_DOB)/365.25)

---

Tamara                         Stalioraitis
100
                                -80

Am I doing something wrong? I have the system date in my pc right. Thanks!
John Received on Sat Jun 22 2002 - 21:15:51 CEST